Abstract: Discharging stability and resolution power for the pitch between a specified pixel and a pixel of an identical color adjacent with the specified pixel forming a stripe pattern of an optical device constituting by arranging plural elongate pixels on a substrate by using an ink jet printing apparatus are intended to be improved, wherein an optical device is manufactured by determining plural discharging positions to the inside of each of the pixels of an optical device, determining the plural discharging positions to the positions different from each other in the longitudinal direction of the pixel, specifying each of the plural nozzles with a natural number n counted sequentially from the end of the pixel, defining a surplus as b when dividing the natural number n with a repetitive number a (b is an integer satisfying: 0?b?a?1), corresponding the surplus b to each of the plural nozzles, and printing the pixel by repeating the unit step of conducting discharge from the nozzles corresponding to the surplus b.

Abstract: In one embodiment of the present invention, an optical device is manufactured by printing a pixel, wherein said method includes deciding plural discharging positions inside each pixel of the optical device, arranging these plural discharging positions on different positions in lateral direction of the pixel respectively, specifying each of the plural nozzles by a natural number n counted sequentially from the end of the ink jet head, defining a surplus as b when dividing the natural number n with the repetitive number a (b is an integer satisfying: 0?b?a?1), corresponding the surplus b to each of the plural nozzles, repeating a unit step of discharging an ink from nozzles corresponding to the surplus b, finding “discharge coefficient” by measuring unevenness of ink discharging and changing the number of times of ink discharging.

Abstract: Discharging stability and resolution power between a specified pixel and a pixel of an identical color adjacent with the specified pixel forming a stripe pattern of an optical device constituting by arranging plural elongate pixels on a substrate by using an ink jet printing apparatus are intended to be improved, wherein an optical device is manufactured by determining plural discharging positions to the inside of each of the pixels of an optical device, determining the plural discharging positions to the positions different from each other in the longitudinal direction of the pixel, specifying each of the plural nozzles with a natural number n counted sequentially from the end of the pixel, defining a surplus as b when dividing the natural number with a repetitive number a (b is an integer satisfying: 0?b?a?1), corresponding the surplus b to each of the plural nozzles, and printing the pixel by repeating the unit step of conducting discharge from the nozzles corresponding to the surplus b.

Abstract: An image forming apparatus uses an ink ribbon having ink layers of different colors, and a long, film-like intermediate transfer medium. A platen for holding the medium during transfer is driven by a motor via a synchronous reduction gear whose speed reducing ratio is an integer multiple. The ink ribbon is selectively heated by a thermal head having regular polygonal or circular heat-generating portions. Under the control of a controller, the thermal head is driven on the basis of image information, and a record image containing an area gradation image is formed on the medium. This area gradation image has a color set by stacking dots having different colors in the same spot. The medium on which the record image is formed is overlapped on a target body and heated and pressed by a heat roller, thereby transferring the record image from the medium onto the target body.

Abstract: An image forming apparatus uses an ink ribbon having ink layers of different colors, and a long, film-like intermediate transfer medium. A platen for holding the medium during transfer is driven by a motor via a synchronous reduction gear whose speed reducing ratio is an integer multiple. The ink ribbon is selectively heated by a thermal head having regular polygonal or circular heat-generating portions. Under the control of a controller, the thermal head is driven on the basis of image information, and a record image containing an area gradation image is formed on the medium. This area gradation image has a color set by stacking dots having different colors in the same spot. The medium on which the record image is formed is overlapped on a target body and heated and pressed by a heat roller, thereby transferring the record image from the medium onto the target body.

Abstract: In the present invention, the thermal efficiency and concentration of a thermal head on a transfer film over the surface of a transfer drum are improved, thereby improving the reproducibility of gradation in printing, which enables highly minute transfer images to be printed on the transfer film. This makes it possible to form a highly minute image on an image-transferred member. To do this, a cushion layer made of elastomer and a rigid layer with a surface finish of less than 2.0 .mu.m on a surface of the cushion layer are provided on a surface of the drum base of the transfer drum.

Abstract: An image-forming apparatus based on an observation of a coincidence of a circular length and a chord length. A precise transfer of the image on a transfer object is accomplished without breaking of the image by maintaining a fixed attitude of the object; by allowing the object's movement at heating and pressing of the transfer film and the object; and by preventing an adhesive layer of the film from adhering to clamps for the object and a rubber. Transfer of an accurate image from the film onto the transfer object by the image transfer apparatus is accomplished by a movable stage which is movable in a longitudinal direction of the film to locate a transfer object to be pressed and heated via a transfer film by a heating roller and a holding apparatus which is located on or on a side of the stage and which is relatively moved along with the stage while partially holding the transfer object.

Abstract: An image transfer device for transferring a clear image to a transfer object includes transport device for a transferring film, an image writing device for transferring ink from a transfer ribbon onto the film by a thermal head, a stage for fixing a transfer object, a guiding means for a inked image of the film onto the object on the stage, a transfer roller for transferring the inked image to the object, and a peel roller disposed in the vicinity of the transfer roller for peeling the transferred film from the object.